Trunion Replacement

[steveww]

Canley Classics a Triumph specialist has these modern alternatives to the good old trunion. Not sure if they need grease or oil though

IIRC the Elan front suspension is essentially Triumph GT6.

Link http://www.canleyclassics.com/

[rgh0]

Steve

This looks absolutyely fantastic for people like me who worry about the integrity of 40 year old second hand uprights trunnion bottom threads under race stresses.

For A$600 they will be on my list for the next routine rebuild of my front end.

cheers
Rohan

[gjz30075]

I like it! If you read the writeup on it, there's mention of a 4 cylinder kit and a 6 cylinder kit. I wonder which will be right for us. I also noticed no boot on either side of the joint. Could that be a problem long term? I wonder if there's going to be a US distributor. Moss Motors maybe? Or will one of the US Lotus suppliers pick up on this? Anyway, just random thoughts and I'm definitely saving my pennies for this one. My concerns are the same as Rohan's.

Greg Z
'72 Sprint

[ppnelan]

See http://chinn.blogspot.com/2001/06/worri ... ef-is.html

It says they are maintenance-free (i.e. no more greasing/oiling!!) and it is easy to replace the spherical bearing components when they wear out.

Anyone who's had one fail will surely be rushing out to buy a set right now...

You would've thought there'd be a rubber boot covering the joint though, like a typical modern fwd car.

Matthew

[steveww]

AFAIK the early Elans were Spitfire and the later ones used GT6 parts. I hope someone more knowledgeable than me can comment.

[msd1107]

From what I understand, the early bolt on hubs used the Spitfire components that had a slightly smaller diameter.

The knock-on hubs used the GT6 hubs, with slightly larger diameter.

If you have bolt on hubs, and upgrade to these new uprights, Dave Bean and others have the bolt on hubs in the larger diameter.

David
1968 36/7988

[miked]

Guys, are you aware that TTR does the original link (GT6/vitesse) without the oil/grease drilling. These are substantially stronger than the standard drilled one not having the centre ripped out. I have a pair of these for my project car. He strips them every season to clean and regrease. He uses the black moly' grease.

There are some good exploded views on the Canley site showing the difference in the spitfire to GT6 hub which can be cross checked in the Robinshaw and Ross book. They also do nice alloy hubs if you are going "bolt on".


Mike

[bcmc33]

It certainly appears to be a much lower cost than the Spyder alternative.

But looking at it, I am not convinced by the engineering of the lower bearing ? it is, after all, a ?rose-joint? spherical bearing under an axial load. I?m not too happy with that arrangement ? but am prepared to be convinced.
The other thing that concerns me is no sealing around the bearing. I rang Canley to be told that sealing was not necessary. I then rang an old business contact in the bearing industry to be told that rose joints are always left open for motor sport applications, but sealing would be recommended for any production road application. Neoprene seals are apparently avalable.

As there are two Canley variants Spitfire & GT6, I guess you have to make sure that one of them is the same as your Elan. Brian Buckland mentions that there are two types of upright ? the difference being the size of the hole for the stub axle.

Having said all this, I believe that the Spyder version is a better engineered option by using standard ball joints top and bottom. But you pay for what you get.


Brian Clarke
(1972 Sprint)

[bcmc33]

I asked Canley what the difference is between the two upright kits they sell, and was advised that Kit 1 is for GT6/Vitesse (large stub axle hole) as per the website picture, and Kit 2 is for Spitfire MKIII/Herald (small stub axle hole + integral caliper fixing bosses).

The GT6 introduction in 1966 coincided with the Elan S3 with knock-on wheels.

So it?s clear that Kit 1 is suitable for an Elan with knock-on wheels, but the Kit 2 would not be suitable for an Elan with bolt-on wheels.


Brian Clarke
(1972 Sprint)

[gav]

hi

Has anyone tried the Canley uprights yet.

If so, what are the first impressions?

Thanks
Gavin